Grooved rail for monorail railroads



H. W. SHOEMAKER.

sRoovED RAIL FUR MONORAIL RAILROADS.

APPUCAYION FILED APR.22. l9l8.

1,355,800. Patented Oct. 12, 1920.

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- greater depth at..its center.

UNITED STATES PATENT OFFICE.

RICHARD W. SHOEMAKER, OF ALAMEDA, CALIFORNIA, ASSIGNOR, BY MESNE ASSIGN MENTS, T0 NATIONAL SUSPENDED MONORAIL COMPANY, A CORPORATION.

GROOVED RAIL FOB. MONORAIL RAILROADS.

Application led April 22, 1918.

To all whom it may concern.'

Be it known that I, RICHARD lV. Snor;- MAKER, a citizen of the lvnited States, residing at Alameda, in the county of Alameda, State of California. have invented a new and useful (irooved Ruil for Monorail Railroads, of which the following is a specifica tion in such full and clear terms as will enable those skilled in the art to construct and use the same.

This invention relates to a track for suspended railways and its object is to produce a grooved track with suflicicnt rigidity tor long spans. the length of the span .deterY mining the depth and width of the supportF ing beam for the track.

.\n embodiment of the invention shown in the drawing in which the saine reference numeral is applied to the sannportion throughout. but l am aware that there may be man v modifications thereof.

Figure l is a side elevation of a complete beam having;r a long spun withV this rail applied thereto,

Fig. 2 is a plan view of the rail shown in Fig. 1, l

Fig. 3 is a vertical sectional View of the rail on the line SW3, Fig. 1,

Fig. 4 is a vertical sectional View of a sligrhtl)r modified form oi' rail in which a channel iron is used for the track, and

Fig. 5 shows the method of joiningr the ends of adjacent rails of both forms.

The numeral l indicates the vertical web of a beam having flanges 2 and 3 at the top thereof with flanges 4 and 5 riveted to its lower edge. the latter pair of flanges; ieing inclined downwardly so as' to give t i' -earn In orlfkr to rive the beam great laterali-.rigidity and prevent it from twisting a flat horizontal niember 6 is provided` said member beingF wider at the center of the beam than at'eny other portion whereby the greatest cross section is produced at the center of the beam.

QMounted upon the plate 6 and riveted thereto and to the flanges 2 and 3 is a plate 8 greoved in its top to forma track for the whml 9. The plate 8 has both of its edges bent over into an L shape in cross section so that there are two parts l() and 11 which are lveted to the flanges 2 and 3 and to the plate 6.

Specification of Letters Patent.

Patented Oct. 12, 1920.

Serial No. 229,883.

The track is trough-like and is provided with a plurality of holes 13 to prevent the accumulation of water therein, and in order to make the track smooth as possible its ends are joined to the ends of the adjacent track by means of the two tongues 14 and l5 and the cooperating tongue 16 on the next adjacent track member 17.

lVhile the form of track shown in Fig. 3 is the most acceptable, the forni of track illustrated in Fig'. 4 may be used as Well. ln this figure of the invention the center plate of the I-beani 'is illustrated at il?, the two upper angle plates at 19 and 20, while. the fiared siffle channel iron 2lV is suitably se cured to the uncles ifi and 2t) by means of bolts 22 and 2.3. ln order to prevent the wheel from binding;r on the outturnecl flanges of the channel 2l suitable blocking bars 24 and 25 are inserted in the inner corners of the channel.

Having;r thus described my invention what I claim as new and desire to secure by Letters Patent of the United States is as fol lows. express reservation being made of perg missible modifications 1. A railway track comprising a grooved plate. a. horizontal stifi'ening plate, means on opposite sides ol. the ot the groovcil plate to secure it to the horizontal plate` a tongue at the end of the rail for holding' the next adjacent rail in aliuement, and n channel beam secured to the grofwed plate below its axis.

2. A railway track comprising a grooved plate having wings on opposite sides of its axis, a channel beam. a horizontal plate to strengthen said channel beam laterally. and means to secure the wings of the track to the channel beam on opposite sides of the web thereof. e

3. A railway track comprising a grooved rail plate having Wings on opposite si es of its axis, a beam, means to secure the rail to the beam on opposite sides of the rail. and a tongue proiccting at the end of the rail i'or1lioldin,,1 the next adjacent rail alined.

In tcstimonv whereof I have hereunto set mv hand this 30th day o'r March, A. D. 1918.

ICHARD lV. .QHOEMAKER teo 

